Premedication for Claustrophobic Patients for MRI Scan
Clonidine and Lorazepam Premedication for Claustrophobic Patients During MRI Scan
1 other identifier
observational
50
1 country
1
Brief Summary
Claustrophobia is an irrational fear of restriction and suffocation. It is a specific phobia, according to DSM 5. Claustrophobic patients may fear that restriction of their limbs will hinder their ability to move quickly towards safety. MRI may trigger claustrophobia, because this diagnostic procedure involves a patient laying in a narrow tube. Premedication before MRI scan may occasionally reduce claustrophobia. Prospective observational crossover study of claustrophobic patients who are undergoing MRI scan. At alternate MRI scan sessions, each patient receives rotational premedication using Lorazepam 1mg; or Clonidine tablet 0.2mg; or combined Clonidine 0.2mg + Lorazepam 1mg. Patient will use Claustrophobia Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. CLQ is a patient-administered tool used to assess claustrophobia. In addition, patient will use General Anxiety Disorder Questionnaire, a validated tool, to collect data on the days before and after each MRI scan. GAD-7 is a patient-administered tool that is used to assess anxiety.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jul 2020
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 4, 2020
CompletedFirst Submitted
Initial submission to the registry
May 5, 2023
CompletedFirst Posted
Study publicly available on registry
May 25, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2025
CompletedJanuary 27, 2025
January 1, 2025
5.5 years
May 5, 2023
January 23, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Rate of completion of MRI scan
Patient is calm and cooperative, completes MRI scan
12 weeks
Study Arms (1)
Claustrophobic adult patients
Claustrophobic adult patients who are undergoing MRI scan as part of chronic pain management.
Eligibility Criteria
Adult claustrophobic patients who are undergoing MRI scan as part of chronic pain management. Previous incomplete MRI because of claustrophobia.
You may qualify if:
- diagnosed with claustrophobia
- previous incomplete MRI because of claustrophobia
- adult patients
- good treatment compliance
- reliable Claustrophobia Questionnaire (CLQ) diary
- reliable General Anxiety Disorder Questionnaire (GAD) diary
- informed consent for diary review
- consent for clinical record quality assurance review
You may not qualify if:
- poor treatment compliance
- cognitive disorder
- inability to provide consent
- major neuropsychiatric disorder
- unreliable diary
- cannabis use
- excessive alcohol intake
- previous adverse/allergic reactions to clonidine
- previous adverse/allergic reactions to lorazepam
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Salem Anaesthesia Pain Clinic
Surrey, British Columbia, V3S 7J1, Canada
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Olu Bamgbade, MD,FRCPC
Salem Anaesthesia Pain Clinic
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- CASE CROSSOVER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 5, 2023
First Posted
May 25, 2023
Study Start
July 4, 2020
Primary Completion
December 31, 2025
Study Completion
December 31, 2025
Last Updated
January 27, 2025
Record last verified: 2025-01